Home / 145,279.92-217,920.96-40,096.56

Finding the Fourth Proportional to 145,279.92, 217,920.96 and 40,096.56

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Solution

The fourth proportional to 145,279.92, 217,920.96 and 40,096.56 is: 60,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,279.92 : 217,920.96 = 40,096.56 : x
  2. Step 2: Convert to fraction form
    145,279.92/217,920.96 = 40,096.56/x
  3. Step 3: Cross multiply
    145,279.92x = 217,920.96 × 40,096.56
  4. Step 4: Simplify right side
    145,279.92x = 8,737,880,847.90
  5. Step 5: Solve for x
    x = 8,737,880,847.90/145,279.92
  6. Step 6: Final answer
    x = 60,145.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.